I originally had an Edelbrock 1405 on the car. Compared to that carb this one is night and day.
Compared to the Holley 750 I would not be able to say which is better. Unless someone has used both it's hard to make that comparison I would imagine; no? This is why I only stated that for my application it's been amazing.
I read that holleys were good, but a little harder to tune than the Edelbrock which is why I went with the AVS2, plus I already was set up for Edelbrock with my Lokar kickdown, and it fits under the hood with my RPM air gap and Edelbrock air filter.